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Saint-Gobain
K20.500

Korel Micro-Cellular Polyurethane Foam

K20.500 is a 500 mil, PU foam ideal for a variety of gasketing and energy absorption needs. Korel K20 foams are very soft and highly conformable, with a very low force to deflect. Korel K20 is recommended for closure of irregular surfaces or flexible materials.

Product Properties Related Information Custom Quote

Converting Services

At Budnick, we specialize in custom converting these materials into labor saving, user-friendly parts.

Backing/Carrier PU - Polyurethane
Adhesive Acrylic
Thickness 500 Mils
Tensile 35.00 lbs/in
Elongation 250.00%
Adhesive Activation Pressure
Adhesion (unwind)
Min. Application Temp 40° F
Min. Service Temp 0° F
Max Short-Term Temp 250° F
Max Long-Term Temp 158° F

Product Features

  • Easy to achieve intricate die-cut parts
  • Aggressive acrylic adhesive (optional) facilitates assembly
  • Availabe cast on to polyester film for stability and low deformation
  • Density=20#/ft cubed
  • Compression Set@73°F= <2
  • Compression Set @158°F= <10
  • Compression Force Deflection, 12.7 mm/min @25% Deflection= 3 psi
  • Force to Compress @25%=4 psi
  • Hardness, Durometer (Shore "O")= 7
  • Tear Strength= 11 pli
  • Modulus= 20 psi
  • Thermal Conductivity= 0.6 BTU-in/hr-sq ft°F
  • Outgassing= 2.22%TML; .030% CVCM; .160% WVR
  • UL Testing (JMST2) File MH26338
  • Surface Resistivity 1 x 10 (14) ohm/sq
  • Volume Resistivity= 2.9 X 10(11)ohm.cm
  • Excellent compression set-resistance
  • Highly resilient (will not collapse)
  • Dissipates stresses
  • Resistant to moisture and most chemicals
  • Conformable and flexible even in extreme environmental conditions

Adhesive Tape Applications

  • Cellular telephones
  • Electrical enclosures
  • Electronic gasketing
  • Vibration damping
  • Cushioning
  • Acoustical control
  • Bumpers
  • Instrument panels
  • Spacers

Adhesive Tape Colors

  • Black

Data provided by Budnick Converting, Inc.

The physical properties listed are typical values and are not to be considered as specifications. Our suggestions for use are based on tests we believe to be reliable. However, the purchaser must carry out their own tests to determine the suitability of the product for their internal use. Information is given in good faith, but without warranty.

It is essential, as with all pressure-sensitive tapes, that the surface to which the tape is applied be clean, dry and free of grease and oil.

Shelf life from date of manufacture is based on the product being stored at 70°F(21°C) / 50% relative humidity out of direct sunlight.

Specification compliance is dynamic and should only be used as a general guide. Always confirm that the tape you are interested in currently complies with all specification requirements. Please verify that the product number that you select is available in the proper size and color to meet your specification.

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For decades Budnick has provided customized solutions for specialty adhesive applications designed specifically for manufacturers. Whether you're looking to speed up production, improve product performance, or protect your products during transport, Budnick has a solution for your needs!